Window frame



ug- 13, y1929. H. J. scHLAcKs 1,724,374

' WINDOW FRAME Filed pril 29, 1927 2 ,sheets-sheet 1 l i l Aug. 13, 1929. H J, SCHLACKS 1,724,374

wINDow FRAME Filed April 29, 1927 2 Shee'bS-Sheet 2 Patented jarig. i3, i929.

ignara rarest erste.

WINDOW FRAME.

Application filed April 29,

My invention relates to window frames. it relates more in particular to a casement window adapted to be inset into the glass Jane oi a larger window thereb accomplishing a number of desirable results which will be hereinafter described.

Windows serve two main purposes namely, to admit light for illumination and air for ventilation to interior spaces such as oiiices, shops and the like. Heretofore mostwindows were designed with thes two purposes in view, with little or no thought given to Y incidental functions having to do with the care of the windows after they are installed, for example, keeping the windows clean` and in a state of repair.

it is only recently that windows have been designed in which the matter of illumination and ventilation have been considered separately. Factories and the like have been made with large areas in the walls and roof glazed to admit light, and relatively small openings provided Jfor ventilating purposes. This construction is an improvement over the old conventional arrangement wherein every glazed area was arranged to be opened, as Jfor example, in the present types of homes and ofiice buildings, But this more recent construction does not facilitate the washing or repairing of such windows, and the construction is much too heavy and cumbersome for home and otlice use.

The principal object of the present invention is the provision of an improved window construction.

Another object is the provision of an inset Tindow sash affording substantially the same area of illumination as a similar window without said inset sash.

Y Another object is the provision oi' a small window adapted to be inset in a larger one and adapted to be readily assembled therewith.

Another object is to yprovide an inset window in which the glass in the large window and in the inset window are in the same plane.

Another object is to provide an improved means of glazing the sash of an inset window.

Another object is to provide an improved hinge structure particularly adapted for use in such windows.

1927. Serial No. 187,569.

Another object is to provide an inset window with improved fastening means adapted to hold said window tightly .in its frame.

Another object is to provide an inset window having a narrow frame and sash structure so that only a small amount of light will be cut out thereby.

Another object is to provide a strong frame for an inset window which has at the same time, however, a relatively narrow cross section.

Other objects and features of the invention will become apparent as the detailed description progresses, and from the consideration of the accompanying drawings' wherein- F ig. l is an elevational View of a window equipped with an inset embodying the main features of my invention Fig. 2 an enlarged sectional View taken along the line 2 2 of Fig. l, an intermediate port-ion of the viewy being broken away to conserve space;

Fig. 3 is a similar sectional View taken along the line 3-3 of Fig. l;

Fig. 4 is an enlarged fragmentary vertical sectional view;

Fig. 5 is a fragmentary view in perspective, showing the latch construction;

ig 6 is a perspective view of the inside hinge corner of the frame;

Fig. 7 is a perspective view of the corner of the sash showing thehinge pin;

Fig. 8 is a perspective View of the corner ot the sash with the removable sash member removed, and,

' Fig. 9 is a perspective view of the corner of the trame showing the arrangement of iflanges which permits the glass in the main window sash and in the inset window to be in the same plane.

In accomplishing the invention l provide an outer frame adapted to be securedwithin the large window pane and having a vertically pivoted sash adapted to be opened to permit access to the outside port-ions of the window, without raising the same.` The inset fra-me has a iiange at the top and bottom adapted to fit in the window sash and is provided with channels on the sides thereof into which the glass panes of the large window are glazed. The pane of the inset window is clamped all around the edge thereof by the inset window sash, the sash being` formed with three sides integral,l and the fourth side being secured in place after the pane is slid into position within the other three sides. The screws holding the fourth side in position act as hinge pins for pivoting the sash to the frame.

The window is adapted to be inset into any kind of a sash. In the drawings I show a sash 10 which may be weighted so as to be raised after thel usual manner, but when my invention is employed it may be fixed in position. The sash is adapted to support a pane of glass 11. For this purpose a channel 12 (Fig. 2) is provided in the top horizontal sash member and the lower edge of the glass is held by a glazing strip 18.

W hen my invention is employed the pane 11 is formed with a central section thereof removed and the window sash 10 utilized to support the top and bottom edges of the inset. I

My inset window comprises an outer frame iaving uprights 15 and 1G and horizontal members 17 and 18. Both the top and bot tom horizontal frame members and the upright frame members have internal flanges 19 and 20, which result in the provision of a channel 21 which extends completely around the inside of the frame. The corners of the vertical and horizontal frame members are mitered to tit together so as to form square corners and they are secured in this position by angle irons 22, 28, 24 and 25 (Fig. 4,. These angles are tl e full width of the channel 21 and serve not only to secure the corners together but also to support the frame against torsional stresses.

rIhe upper and lower horizontal frame members 17 and 18 have external flanges 26 and 27 respectively, by means of which the :trame is secured in the window sash. In attaching the frame to the window sash 10, the flange 2G is extended upwardly into the channel 12 and the entire frame brought into proper position as shown in Fig. 2. rIhe glazing strip 13 is then placed against the flange 27 and held in position by screws 28. The upper channel may be filled with putty or a suitable glazing cement 29 and screws 31 are extended through suitable holes in the upper frame member to attach it more integrally to the sash. Some of the screws 28 holding the glazing strip 13 in position are also extended through suitably provided apertures in the lower horizontal member 18.

rIhe upright frame members 15 and 16 are provided with exterior flanges 88 and 84 which form channels for receiving the glass pane 11 of the large window. The iiange 34 is of greatest width and is on the weather side of the frame. The glass is positioned against this flange and suitable glazing cement forced into the remaining portion of the channel to hold the pane in place.

In the construction of the frame members, the channels are arranged so that the eX- terior flanges on the members 17 and 18 are inset from the flanges 84. This results in the flanges 26 and 27 being in the same plane as the pane 11 and as a result the glass in the inset is easily disposed in the same plane as the glass in the main or large window.

lIhe inset easement sash comprises upper and lower members 36 and 37, with upright members 88 and 89. The sash members 36, 87, and 38 are integral with each other and constitute an integral three sided figure into which the pane is adapted to be slid and then clamped in place by the application of the fourth side of the sash.

The sash members comprise a web 41 with two continuous projections 42 and 43 of angular cross section. In forming the three sides integral, a single length of strip is half-mitered so as to form a pair of right angle eXcisions across the projections 42 and 48. The strip is then articulated at these points to bring the excised edges of the projections 42 and 48 together. This results in the provision of a pair of right angular corners and a three sided frame with the web 41 unbroken throughout. The ends of the members 86 and 87 are mitered so as to malte an even connection with. the mtered ends of the members 39.

A pair of angular braces 44 and 45 are provided to reinforce the sash and secure the removable member vin place. These two angular members are secured to the sash member 89 by screws 46-46 and this is a semi-permanent connection'. The other ends of the annular braces 44 and 45 are threaded to receive removable fastening"v screws 47 and 48 which in a manner to be described, also serve as hinge pins.

The continuous projections 42 and 43 result in the formation of a channel 49 entirely around the internal edge of the sash. rIhe angular braces 44 and 45 are wide enough so that they ht closely in the channel between the projections 42V and 43 as shown in 8. Vf hen the sash is glazed, the glass pane is slid sideways into position in the integral three sided portion of the frame, and the portions 44a and 45a, of the angular braces are slid into position so that the mitered ends of the sash members come together. The screw iinge pins 47 and 48 are then inserted through suitably provided apertures in the upper and lower sash members and threaded into the tapped holes provided in the portions 44a and 45a. The glass has its corner edges which come in Contact with the angular braces 44 and 45, cut away to provide space for these braces, and the glass pane is therefore gripped all around its edge by the inset window sash. Any usual glazing cement 51 is forced into the channel 49 next to the glass to assist in maintaining the pane in place and also to form a water tight seal.

The hinging of the sash to the frame may be accomplished in a number of different ways but I have developed a` novel arrangement which lends itself readily to the main objects of the invention. The frame brace is provided with an aperture into which the hinge pin 48 is adapted to be readily inserted to form a. hinge connection. At the top, (or bottom if desired) a similar aperture 52 is provided, but in order to introduce the hinge pin 47 into this aperture, a portion 24a of the brace is formed separate from the main portion of the brace and is removable in the manner shown in Fig. 6. By removing the portion 2421,21 narrow channel 52 is formed leading to the aperture 52. IIhe sash may now be hinged by first inserting the hinge pin 48 in the lower aperture in the brace member 25, introducing the hinge pin 47 into the channel 52a and sliding it longitudinally of the channel until it reaches aperture position 52. Portion 24a is then placed in position and secured in any suitable manner as by a screw 53.

In forming the hinges, the pivot pins must be positioned so that they will not cause a binding of the sash, but they should provide a tight joint. The outer corner edge of the sash frame is rounded slightly as shown in Fig. 3 and the pivot point and the curvature of this edge should be such as to permit the sash to be fitted up tightly against the flange 20 without binding, and when the sash is opened, the arcuate edge maintains a contact with the edge of the flange 20. The bearing intoI which the pins extend, determines how close the connection at this point will be.

'Io secure the sash in closed position, I provide a novel latch mechanism which fastens the sash in a plurality of positions and is at the same time easily and conveniently operated. A longitudinally disposed latch bar 55 is positioned in the channel 49 along the member 38 but under the projecting angular portion 42 so as not to interfere with the position of the glass pane. A narrow slot in the member 42 permits an operating handle 56 to be secured to the rod 55 by a pair of screws 57. vThe ends of the latch rod 55 are turned inwardly to form latch bolts 58 which project through slots 59 in the web 41. The flange 20 of the frame member 15 is notched to form a pair of edge openings 61 'through which the bolts 58 pass when the sash is moved to closed position. The operating handle 56 is then depressed downwardly and the pawls engaged by the flange 20 to secure the sash in posit-ion. Any usual construction can be employed to tighten the sash as the latch is operated. Any inclination between the engaging surfaces on the V pawls 58 and the flange l2() will serve to tighten the connectionV between the sash and frame, the further the latch is pulled downwardly. In the drawings I show the latching pawls with inclined engaging surface but it is obvious that an inclination may be given to the engaging surface on the flange 20.

To avoid the possibility of the latch being clogged by the material employed to glaze the pane, a very thin angular strip 62 is placed between the glass and the latch. The latch rod 55 is adapted to slide along the edge of this strip and therefore at all times be maintained in workablecondition. My improved window is formed so that there is no noticeable shutting out of the light by the easement and sash frame. The frame can be made throughout, of light, strong material of narrow cross section. I

employ, preferably, extruded aluminum bars for all but the brace members and movable portions of the mechanism. The braces being protected from the weather by the position in which they are located, may be made of steel and the movable portions of the latch may also be made of steel if desired` In this way a light but stro-ng construction is obtained.

My inset window can be` secured in any way to form a separate opening in a large pane of glass. It furnishes all the space that is necessary for ventilation purposes and still does not obscure the light. It is of exceptional .utility when it is necessary to reach the outside of the window, as for example, when washing the same. A person may stand within a room and thoroughly wash a window formed inV this way without any danger and wit-hout having to extend any portion of the body but the arm on the outside. This is of great value when it is used, for example," in ofhce buildings in smoky portions of the city where windows must be washed several times a week. The present practice is for two workmen to wash windows together, one on the outside and the other on the inside. With my construction this entire procedure can be revolutionized.

I have shown a specific form of my invention but it is obvious that it may take different forms. I do not restrict myself to this specific embodiment, therefore, but the invention is limit-ed only by the scope of the appended claims.

What I claim as new and desire to secure by United States Letters Patent is 1. An inset easement window of the class described adapted to lit between the panes of a larger window, said easement window comprising an outer frame with top and bottoni flanges adapted to set into the upper and lower sash sides of the window and Said frame having outer side channels adapted to receive the side edge of the adjacent glass pane of said window, and a easement sash with vertically disposed top and bottom hinge pins with their ends said outer easement frame.

2. An inset easement window as defined in claim l, with the top and bottom flanges and side channels of the outer' easement frame offset from each other so that the glass panes in the large window and the glass pane in the inset easement window will be in substantially the same plane.

3. A Casement window delined in claim l wherein the outer edge of said sash is arcuately formed and the hinge is pin disposed relative to the arc so as to provide a tight joint in opening and closing the sash.

4. In an inset easement window a frame and a sash hinged to the frame, said sash having three sides integral and with an angle brace secured at each free end, and the fourth side secured in place by attachment to the angle braces, the attachment being made by a screw at each end and the screws serving as hinge pins to pivotally secure the sash to the frame.

5. An inset easement window including an outer frame of channel construction with the channel legs facing inwardly, an angle brace set into corresponding upper and lower corners -of the frame, a sash having upper and lower pivot pins fitting into pivot openings in the angle braces, one of said braces being separable at the pivot opening to permit insertion and removal of the sash.

6. In an inset easement window a frame adapted to be inset into a larger window and a sash hinged to the frame, said frame having top and bottom flanges litted with portions of the large pane into the top and bottom sash members of the large window, and having side channels into which the glass panes of the large window are glazed.

7. A window-as defined in claim 6 with the top and bottom flanges on the inset sash, and the side channels in substantial alignment, so that the inset window will be in the same plane as the larger window.

8. ln an inset Casement window, a frame adapted to be inserted in a larger window, a channeled sash hinged to the frame and means for latching the sashv to the frame, said latching means including a cammed latching' bolt set into the channel and longitudinally movable therein so that operation of the latch serves to tighten the engagement between the sash and said frame. i

9. In an inset easement window, a frame adapted to be inserted in a larger window, a channeled sash hinged to the frame, and

pivotally held in a latch for locking the sash in closed position, said latch comprising a latch rod concealed in the channel of the sash, an operating handle on the sash, with a plurality of latch bolts on said rod, and a plurality of openings in the frame, one for each bolt to permit the bolts to move through to engage behind the frame.

10. A window as defined in claim 9, wherein a camming action takes place between the latch bolts and the engaging point of the frame, so that operation of the latch serves to press the sash tightly against the frame at a plurality of points.

ll. A window as defined in claim 9, wherein the glass is set into the channel of the sash, and a protective sheet metal angle strip set into the channel between the bolt rod and glass to permit glazing by putty without interfering with the free operation of the bolt rod.

l2. In an inset easement window, a casement comprising side members with a channel for receiving an inset glass pane, and means for forming a closed area within the channel.

13. In an inset easement window, a side member of U cross section, with right angular side projections from each leg of the U, both of said projections extending in the same direction, and the one overlapping the il resulting in the formation of a closed area within the channel.

lll. ln an inset easement window, a casement having its frame members of irl-shape cross section resulting in a channel for receiving an inset glass pane, and means for forming a closed area within the channel, and a latching rod reciprocable in said Closed area.

l5. n an inset easement window a sash with a channel around its inner edge to re` ceive the edge of a glass pane, said sash consist-ing of three sides integral with each other and with the projecting ends mitered, a fourth side with its ends mitered to join the mitered ends of the three sided figure, a pair of angles each with one leg fixed in the channel at the ends of the fourth side so that the opposite legs are disposed to eX tend into the channel in the three sided figure when the frame is assembled, and screw means for securing the inserted angle legs to the three sidedportion of the sash frame.

In witness whereof, hereunto subscribe my name this 31st day of March, 1927.

HENRY J. SCHLACKS. 

